package com.krinko.controller;

import com.krinko.pojo.Result;
import com.krinko.pojo.User;
import com.krinko.service.UserService;
import com.krinko.utils.JwtUtil;
import com.krinko.utils.Md5Util;
import com.krinko.utils.ThreadLocalUtil;
import jakarta.annotation.Resource;
import jakarta.validation.constraints.Pattern;
import lombok.extern.slf4j.Slf4j;
import org.hibernate.validator.constraints.URL;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;


@RestController
@RequestMapping("/user")
@Validated
public class UserController {
    @Resource
    private UserService userService;
    @PostMapping("/register")
    public Result register(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$")String password) {
        //log.info("======>走这里了,用户名是：{}",username);
        //查询用户
        User user = userService.findByUsername(username);
        if (user == null) {
            //没有占用
            //注册
            userService.register(username,password);
            return Result.success();
        }else {
            //占用
            return Result.error("用户名已经被占用");
        }
        //注册
    }
    @PostMapping("/login")
    public Result<String> login(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$")String password){
        //根据用户名查询用户
        User user = userService.findByUsername(username);
        if (user == null) {
            return Result.error("用户名错误");
        }
        //判断该用户是否存在

        //判断密码是否正确 这里的user的password是加密过的
        if(Md5Util.getMD5String(password).equals(user.getPassword())){
            //登录成功以后要给前段返回jwt令牌
            Map<String,Object> map = new HashMap<>();
            map.put("id",user.getId());
            map.put("username",user.getUsername());
            String token = JwtUtil.genToken(map);
            return Result.success(token);
        }
        return Result.error("密码错误");

    }

    @GetMapping("/userInfo")
    public Result<User> userInfo(/*@RequestHeader(name = "Authorization") String token*/){
        //根据用户名查询用户
        /*Map<String, Object> map = JwtUtil.parseToken(token);
        String username = (String) map.get("username");*/
        Map<String,Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");

        User user = userService.findByUsername(username);
        return Result.success(user);


    }
    @PutMapping("/update")
    public Result update(@RequestBody @Validated User user){

        userService.update(user);
        return Result.success();
    }
    @PatchMapping("/updateAvatar")
    public Result updateAvatar(@RequestParam @URL String avatarUrl){
        userService.updateAvatar(avatarUrl);
        return Result.success();
    }
    @PatchMapping("/updatePwd")
    public Result updatePwd(@RequestBody Map<String,String> params){

        System.out.println("------走这里了");
        //1.校验参数
        String oldPwd = params.get("old_pwd");
        String newPwd = params.get("new_pwd");
        String confirmPwd = params.get("re_pwd");
        if (!StringUtils.hasLength(oldPwd) ||!StringUtils.hasLength(newPwd) ||!StringUtils.hasLength(confirmPwd)){
            return Result.error("缺少必要参数");
        }
        //校验原密码是否正确
        Map<String,Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User loginUser = userService.findByUsername(username);
        if (loginUser.getPassword().equals(Md5Util.getMD5String(oldPwd))){
            return Result.error("原密码填写不正确");
        }
        //校验两次密码是不是一直
        if (!confirmPwd.equals(newPwd)){
            return Result.error("两次输入的密码不一致");
        }

        //调用Service完成更新
        userService.updatePwd(newPwd);
        return Result.success();
    }

}
